Question 2 :
What is the difference between displacement over double displacement reactions ?

Question 3 :
An oxidizing agent is always takes part in the reduction process while a reducing agent is always take part in the _______ process.

Question 7 :
$FeCl_3 + 3NaOH \rightarrow 3NaCl + Fe(OH)_3$<br/><br/>The reaction is an example of________.

Question 8 :
A less reactive metal replaces a more reactive metal from its salt solution in water.<br>

Question 10 :
State true or false.<br/>In a chemical equation, the products are written on the left-hand side and the reactants on the right-hand side with an arrow in between.

Question 11 :
Magnesium ribbon is burnt in an atmosphere of nitrogen gas&#160;to form solid magnesium nitride. This is a :<br/>

Question 12 :
Which substance is serving as a reducing agent in the following reaction?<br/><br/>&#160; &#160; $FeSO_4+Mg\rightarrow MgSO_4+Fe$

Question 13 :
Two aqueous solutions are mixed and a precipitate is formed. What type of reaction is it?&#160;

Question 14 :
Identify the product(s) which will be formed by using the information provided about the reactants.<br/>$NaCl(aq)+Ag{NO}_{3}(aq)\rightarrow$

Question 15 :
The standard reduction potentials at $25^{\circ}C$ for the following half reactions are given against each;<br>$Zn^{2+}(aq.) + 2e^{-}\rightleftharpoons Zn(s); -0.762$<br>$Cr^{3+}(aq.) + 3e^{-}\rightleftharpoons Cr(s); -0.740$<br>$2H^{+} + 2e^{-}\rightleftharpoons H_{2}(g); 0.00$<br>$Fe^{3+} + e^{-}\rightleftharpoons Fe^{2+}; 0.77$<br>Which is the strongest reducing agent?

Question 16 :
A metal ($A$) on heating in nitrogen gas gives compound $B$. $B$ on treatment with ${H}_{2}O$ gives a colourless gas which when passed through $Cu{SO}_{4}$ solution gives a dark blue-violet coloured solution. $A$ and $B$ respectively, are :

Question 17 :
The equation which is balanced and represents the correct product is:

Question 19 :
Minimum amount of $Ag_2CO_3$ (s) required to produce sufficient amount of oxygen for the complete &#160;combustion of $C_2H_2$ which produces 11.2 L of $CO_2$ at STP after combustion is_________.<br/>$Ag_2CO_3 (s) \, \rightarrow\, 2Ag (s)\, +\, CO_2 (g)\, +\, \dfrac12 O_2 (g)$<br/>$C_2H_2\, +\, \dfrac52 O_2\, \rightarrow\, 2CO_2\, +\, H_2O$<br/>

Question 20 :
If the value of $n$ is $2$, then the atomic weight of metal $M$, is